Man accused in overdose death pleads guilty to manslaughter, sentenced to 10 years

COLUMBIA, Mo. (KMIZ)

A Columbia man who was accused of selling drugs that led to an overdose death in 2020 pleaded guilty on Friday.

Mark Conn, 31, pleaded guilty to first-degree involuntary manslaughter. He was sentenced to 10 years in the Missouri Department of Corrections. He was initially charged with second-degree murder and delivery of a controlled substance.

Conn on Friday also pleaded guilty to driving while revoked. He is already in the Missouri Department of Corrections serving a four-year sentence for multiple driving while revoked charges and driving while intoxicated.

Conn had allegedly admitted to selling drugs that killed another man, according to previous reporting. Police allegedly found a typed conversation on Facebook Messenger between Conn and the man who overdosed, according to the report. Police arrested another man who allegedly told investigators he sold heroin to Conn.

A high level of fentanyl in the victim's system contributed to his death, according to previous reporting.